src/msw/filedlg.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/filedlg.cpp
// Purpose:     wxFileDialog
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma implementation "filedlg.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_FILEDLG && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))

#ifndef WX_PRECOMP
    #include "wx/utils.h"
    #include "wx/msgdlg.h"
    #include "wx/filedlg.h"
    #include "wx/filefn.h"
    #include "wx/intl.h"
    #include "wx/log.h"
    #include "wx/app.h"
#endif

#include "wx/msw/wrapcdlg.h"

#include <stdlib.h>
#include <string.h>

#include "wx/filename.h"
#include "wx/tokenzr.h"
#include "wx/math.h"

#include "wx/msw/missing.h"

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

#ifdef __WIN32__
# define wxMAXPATH   65534
#else
# define wxMAXPATH   1024
#endif

# define wxMAXFILE   1024

# define wxMAXEXT    5

// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------

// standard dialog size
static wxRect gs_rectDialog(0, 0, 428, 266);

// ============================================================================
// implementation
// ============================================================================

IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)

// ----------------------------------------------------------------------------
// hook function for moving the dialog
// ----------------------------------------------------------------------------

UINT APIENTRY
wxFileDialogHookFunction(HWND      hDlg,
                         UINT      iMsg,
                         WPARAM    WXUNUSED(wParam),
                         LPARAM    lParam)
{
    HWND   hwndDialog;
    hwndDialog = ::GetParent( hDlg );
    switch (iMsg)
    {
        case WM_DESTROY:
            {
                RECT dlgRect;
                GetWindowRect( hwndDialog, & dlgRect );
                gs_rectDialog.x = dlgRect.left;
                gs_rectDialog.y = dlgRect.top;
                gs_rectDialog.width = dlgRect.right - dlgRect.left;
                gs_rectDialog.height = dlgRect.bottom - dlgRect.top;
            }
            break;

        case WM_NOTIFY:
            {
                OFNOTIFY *   pNotifyCode;
                pNotifyCode = (LPOFNOTIFY) lParam;
                if (CDN_INITDONE == (pNotifyCode->hdr).code)
                {
                    SetWindowPos( hwndDialog, HWND_TOP,
                                  gs_rectDialog.x,
                                  gs_rectDialog.y,
                                  gs_rectDialog.width,
                                  gs_rectDialog.height,
                                  SWP_NOZORDER|SWP_NOSIZE);
                 }
            }
            break;
    }

    // do the default processing
    return 0;
}

// ----------------------------------------------------------------------------
// wxFileDialog
// ----------------------------------------------------------------------------

wxFileDialog::wxFileDialog(wxWindow *parent,
                           const wxString& message,
                           const wxString& defaultDir,
                           const wxString& defaultFileName,
                           const wxString& wildCard,
                           long style,
                           const wxPoint& pos)
            : wxFileDialogBase(parent, message, defaultDir, defaultFileName,
                               wildCard, style, pos)

{
    if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
        m_dialogStyle &= ~wxMULTIPLE;

    m_bMovedWindow = false;

    // Must set to zero, otherwise the wx routines won't size the window
    // the second time you call the file dialog, because it thinks it is
    // already at the requested size.. (when centering)
    gs_rectDialog.x =
    gs_rectDialog.y = 0;

}
void wxFileDialog::GetPaths(wxArrayString& paths) const
{
    paths.Empty();

    wxString dir(m_dir);
    if ( m_dir.Last() != _T('\\') )
        dir += _T('\\');

    size_t count = m_fileNames.GetCount();
    for ( size_t n = 0; n < count; n++ )
    {
        if (wxFileName(m_fileNames[n]).IsAbsolute())
            paths.Add(m_fileNames[n]);
        else
            paths.Add(dir + m_fileNames[n]);
    }
}

void wxFileDialog::GetFilenames(wxArrayString& files) const
{
    files = m_fileNames;
}

void wxFileDialog::SetPath(const wxString& path)
{
    wxString ext;
    wxSplitPath(path, &m_dir, &m_fileName, &ext);
    if ( !ext.empty() )
        m_fileName << _T('.') << ext;
}

void wxFileDialog::DoGetPosition( int *x, int *y ) const
{
    *x = gs_rectDialog.x;
    *y = gs_rectDialog.y;
}


void wxFileDialog::DoGetSize(int *width, int *height) const
{
    *width  = gs_rectDialog.width;
    *height = gs_rectDialog.height;
}

void wxFileDialog::DoMoveWindow(int x, int y, int WXUNUSED(width), int WXUNUSED(height))
{
    m_bMovedWindow = true;

    gs_rectDialog.x = x;
    gs_rectDialog.y = y;

    /*
        The width and height can not be set by the programmer
        its just not possible.  But the program can get the
        size of the Dlg after it has been shown, in case they need
        that data.
    */
}

int wxFileDialog::ShowModal()
{
    HWND hWnd = 0;
    if (m_parent) hWnd = (HWND) m_parent->GetHWND();
    if (!hWnd && wxTheApp->GetTopWindow())
        hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();

    static wxChar fileNameBuffer [ wxMAXPATH ];           // the file-name
    wxChar        titleBuffer    [ wxMAXFILE+1+wxMAXEXT ];  // the file-name, without path

    *fileNameBuffer = wxT('\0');
    *titleBuffer    = wxT('\0');

#if WXWIN_COMPATIBILITY_2_4
    long msw_flags = 0;
    if ( (m_dialogStyle & wxHIDE_READONLY) || (m_dialogStyle & wxSAVE) )
        msw_flags |= OFN_HIDEREADONLY;
#else
    long msw_flags = OFN_HIDEREADONLY;
#endif

    if ( m_dialogStyle & wxFILE_MUST_EXIST )
        msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
    /*
        If the window has been moved the programmer is probably
        trying to center or position it.  Thus we set the callback
        or hook function so that we can actually adjust the position.
        Without moving or centering the dlg, it will just stay
        in the upper left of the frame, it does not center
        automatically..  One additional note, when the hook is
        enabled, the PLACES BAR in the dlg (shown on later versions
        of windows (2000 and XP) will automatically be turned off
        according to the MSDN docs.  This is normal.  If the
        programmer needs the PLACES BAR (left side of dlg) they
        just shouldn't move or center the dlg.
    */
    if (m_bMovedWindow) // we need these flags.
    {
        msw_flags |= OFN_EXPLORER|OFN_ENABLEHOOK;
#ifndef __WXWINCE__
        msw_flags |= OFN_ENABLESIZING;
#endif
    }

    if (m_dialogStyle & wxMULTIPLE )
    {
        // OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
        msw_flags |= OFN_EXPLORER | OFN_ALLOWMULTISELECT;
    }

    // if wxCHANGE_DIR flag is not given we shouldn't change the CWD which the
    // standard dialog does by default
    if ( !(m_dialogStyle & wxCHANGE_DIR) )
    {
        msw_flags |= OFN_NOCHANGEDIR;
    }

    if ( m_dialogStyle & wxOVERWRITE_PROMPT )
    {
        msw_flags |= OFN_OVERWRITEPROMPT;
    }

    OPENFILENAME of;
    wxZeroMemory(of);

    // the OPENFILENAME struct has been extended in newer version of
    // comcdlg32.dll, but as we don't use the extended fields anyhow, set
    // the struct size to the old value - otherwise, the programs compiled
    // with new headers will not work with the old libraries
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
    of.lStructSize       = sizeof(OPENFILENAME) -
                           (sizeof(void *) + 2*sizeof(DWORD));
#else // old headers
    of.lStructSize       = sizeof(OPENFILENAME);
#endif

    of.hwndOwner         = hWnd;
    of.lpstrTitle        = WXSTRINGCAST m_message;
    of.lpstrFileTitle    = titleBuffer;
    of.nMaxFileTitle     = wxMAXFILE + 1 + wxMAXEXT;    // Windows 3.0 and 3.1

    // Convert forward slashes to backslashes (file selector doesn't like
    // forward slashes) and also squeeze multiple consecutive slashes into one
    // as it doesn't like two backslashes in a row neither

    wxString  dir;
    size_t    i, len = m_dir.length();
    dir.reserve(len);
    for ( i = 0; i < len; i++ )
    {
        wxChar ch = m_dir[i];
        switch ( ch )
        {
            case _T('/'):
                // convert to backslash
                ch = _T('\\');

                // fall through

            case _T('\\'):
                while ( i < len - 1 )
                {
                    wxChar chNext = m_dir[i + 1];
                    if ( chNext != _T('\\') && chNext != _T('/') )
                        break;

                    // ignore the next one, unless it is at the start of a UNC path
                    if (i > 0)
                        i++;
                    else
                        break;
                }
                // fall through

            default:
                // normal char
                dir += ch;
        }
    }

    of.lpstrInitialDir   = dir.c_str();

    of.Flags             = msw_flags;
    of.lpfnHook          = wxFileDialogHookFunction;

    wxArrayString wildDescriptions, wildFilters;

    size_t items = wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters);

    wxASSERT_MSG( items > 0 , _T("empty wildcard list") );

    wxString filterBuffer;

    for (i = 0; i < items ; i++)
    {
        filterBuffer += wildDescriptions[i];
        filterBuffer += wxT("|");
        filterBuffer += wildFilters[i];
        filterBuffer += wxT("|");
    }

    // Replace | with \0
    for (i = 0; i < filterBuffer.Len(); i++ ) {
        if ( filterBuffer.GetChar(i) == wxT('|') ) {
            filterBuffer[i] = wxT('\0');
        }
    }

    of.lpstrFilter  = (LPTSTR)filterBuffer.c_str();
    of.nFilterIndex = m_filterIndex + 1;

    //=== Setting defaultFileName >>=========================================

    wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
    fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');

    of.lpstrFile = fileNameBuffer;  // holds returned filename
    of.nMaxFile  = wxMAXPATH;

    // we must set the default extension because otherwise Windows would check
    // for the existing of a wrong file with wxOVERWRITE_PROMPT (i.e. if the
    // user types "foo" and the default extension is ".bar" we should force it
    // to check for "foo.bar" existence and not "foo")
    wxString defextBuffer; // we need it to be alive until GetSaveFileName()!
    if (m_dialogStyle & wxSAVE)
    {
        const wxChar* extension = filterBuffer;
        int maxFilter = (int)(of.nFilterIndex*2L) - 1;

        for( int i = 0; i < maxFilter; i++ )           // get extension
            extension = extension + wxStrlen( extension ) + 1;

        // use dummy name a to avoid assert in AppendExtension
        defextBuffer = AppendExtension(wxT("a"), extension);
        if (defextBuffer.StartsWith(wxT("a.")))
        {
            defextBuffer.Mid(2);
            of.lpstrDefExt = defextBuffer.c_str();
        }
    }

    //== Execute FileDialog >>=================================================

    bool success = (m_dialogStyle & wxSAVE ? GetSaveFileName(&of)
                                           : GetOpenFileName(&of)) != 0;

    DWORD errCode = CommDlgExtendedError();

#ifdef __WIN32__
    if (!success && (errCode == CDERR_STRUCTSIZE))
    {
        // The struct size has changed so try a smaller or bigger size

        int oldStructSize = of.lStructSize;
        of.lStructSize       = oldStructSize - (sizeof(void *) + 2*sizeof(DWORD));
        success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);
        errCode = CommDlgExtendedError();

        if (!success && (errCode == CDERR_STRUCTSIZE))
        {
            of.lStructSize       = oldStructSize + (sizeof(void *) + 2*sizeof(DWORD));
            success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);
        }
    }
#endif // __WIN32__

    if ( success )
    {
        m_fileNames.Empty();

        if ( ( m_dialogStyle & wxMULTIPLE ) &&
#if defined(OFN_EXPLORER)
             ( fileNameBuffer[of.nFileOffset-1] == wxT('\0') )
#else
             ( fileNameBuffer[of.nFileOffset-1] == wxT(' ') )
#endif // OFN_EXPLORER
           )
        {
#if defined(OFN_EXPLORER)
            m_dir = fileNameBuffer;
            i = of.nFileOffset;
            m_fileName = &fileNameBuffer[i];
            m_fileNames.Add(m_fileName);
            i += m_fileName.Len() + 1;

            while (fileNameBuffer[i] != wxT('\0'))
            {
                m_fileNames.Add(&fileNameBuffer[i]);
                i += wxStrlen(&fileNameBuffer[i]) + 1;
            }
#else
            wxStringTokenizer toke(fileNameBuffer, _T(" \t\r\n"));
            m_dir = toke.GetNextToken();
            m_fileName = toke.GetNextToken();
            m_fileNames.Add(m_fileName);

            while (toke.HasMoreTokens())
                m_fileNames.Add(toke.GetNextToken());
#endif // OFN_EXPLORER

            wxString dir(m_dir);
            if ( m_dir.Last() != _T('\\') )
                dir += _T('\\');

            m_path = dir + m_fileName;
            m_filterIndex = (int)of.nFilterIndex - 1;
        }
        else
        {
            //=== Adding the correct extension >>=================================

            m_filterIndex = (int)of.nFilterIndex - 1;

            if ( !of.nFileExtension ||
                 (of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) )
            {
                // User has typed a filename without an extension:
                const wxChar* extension = filterBuffer;
                int   maxFilter = (int)(of.nFilterIndex*2L) - 1;

                for( int i = 0; i < maxFilter; i++ )           // get extension
                    extension = extension + wxStrlen( extension ) + 1;

                m_fileName = AppendExtension(fileNameBuffer, extension);
                wxStrncpy(fileNameBuffer, m_fileName.c_str(), wxMin(m_fileName.Len(), wxMAXPATH-1));
                fileNameBuffer[wxMin(m_fileName.Len(), wxMAXPATH-1)] = wxT('\0');
            }

            m_path = fileNameBuffer;
            m_fileName = wxFileNameFromPath(fileNameBuffer);
            m_fileNames.Add(m_fileName);
            m_dir = wxPathOnly(fileNameBuffer);
        }
    }
    else
    {
        // common dialog failed - why?
#ifdef __WXDEBUG__
        DWORD dwErr = CommDlgExtendedError();
        if ( dwErr != 0 )
        {
            // this msg is only for developers
            wxLogError(wxT("Common dialog failed with error code %0lx."),
                       dwErr);
        }
        //else: it was just cancelled
#endif
    }

    return success ? wxID_OK : wxID_CANCEL;

}

#endif // wxUSE_FILEDLG && !(__SMARTPHONE__ && __WXWINCE__)
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/msw/filedlg.cpp
	3	// Purpose: wxFileDialog
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/02/97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
	21	#pragma implementation "filedlg.h"
	22	#endif
	23
	24	// For compilers that support precompilation, includes "wx.h".
	25	#include "wx/wxprec.h"
	26
	27	#ifdef __BORLANDC__
	28	#pragma hdrstop
	29	#endif
	30
	31	#if wxUSE_FILEDLG && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
	32
	33	#ifndef WX_PRECOMP
	34	#include "wx/utils.h"
	35	#include "wx/msgdlg.h"
	36	#include "wx/filedlg.h"
	37	#include "wx/filefn.h"
	38	#include "wx/intl.h"
	39	#include "wx/log.h"
	40	#include "wx/app.h"
	41	#endif
	42
	43	#include "wx/msw/wrapcdlg.h"
	44
	45	#include <stdlib.h>
	46	#include <string.h>
	47
	48	#include "wx/filename.h"
	49	#include "wx/tokenzr.h"
	50	#include "wx/math.h"
	51
	52	#include "wx/msw/missing.h"
	53
	54	// ----------------------------------------------------------------------------
	55	// constants
	56	// ----------------------------------------------------------------------------
	57
	58	#ifdef __WIN32__
	59	# define wxMAXPATH 65534
	60	#else
	61	# define wxMAXPATH 1024
	62	#endif
	63
	64	# define wxMAXFILE 1024
	65
	66	# define wxMAXEXT 5
	67
	68	// ----------------------------------------------------------------------------
	69	// globals
	70	// ----------------------------------------------------------------------------
	71
	72	// standard dialog size
	73	static wxRect gs_rectDialog(0, 0, 428, 266);
	74
	75	// ============================================================================
	76	// implementation
	77	// ============================================================================
	78
	79	IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)
	80
	81	// ----------------------------------------------------------------------------
	82	// hook function for moving the dialog
	83	// ----------------------------------------------------------------------------
	84
	85	UINT APIENTRY
	86	wxFileDialogHookFunction(HWND hDlg,
	87	UINT iMsg,
	88	WPARAM WXUNUSED(wParam),
	89	LPARAM lParam)
	90	{
	91	HWND hwndDialog;
	92	hwndDialog = ::GetParent( hDlg );
	93	switch (iMsg)
	94	{
	95	case WM_DESTROY:
	96	{
	97	RECT dlgRect;
	98	GetWindowRect( hwndDialog, & dlgRect );
	99	gs_rectDialog.x = dlgRect.left;
	100	gs_rectDialog.y = dlgRect.top;
	101	gs_rectDialog.width = dlgRect.right - dlgRect.left;
	102	gs_rectDialog.height = dlgRect.bottom - dlgRect.top;
	103	}
	104	break;
	105
	106	case WM_NOTIFY:
	107	{
	108	OFNOTIFY * pNotifyCode;
	109	pNotifyCode = (LPOFNOTIFY) lParam;
	110	if (CDN_INITDONE == (pNotifyCode->hdr).code)
	111	{
	112	SetWindowPos( hwndDialog, HWND_TOP,
	113	gs_rectDialog.x,
	114	gs_rectDialog.y,
	115	gs_rectDialog.width,
	116	gs_rectDialog.height,
	117	SWP_NOZORDER\|SWP_NOSIZE);
	118	}
	119	}
	120	break;
	121	}
	122
	123	// do the default processing
	124	return 0;
	125	}
	126
	127	// ----------------------------------------------------------------------------
	128	// wxFileDialog
	129	// ----------------------------------------------------------------------------
	130
	131	wxFileDialog::wxFileDialog(wxWindow *parent,
	132	const wxString& message,
	133	const wxString& defaultDir,
	134	const wxString& defaultFileName,
	135	const wxString& wildCard,
	136	long style,
	137	const wxPoint& pos)
	138	: wxFileDialogBase(parent, message, defaultDir, defaultFileName,
	139	wildCard, style, pos)
	140
	141	{
	142	if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
	143	m_dialogStyle &= ~wxMULTIPLE;
	144
	145	m_bMovedWindow = false;
	146
	147	// Must set to zero, otherwise the wx routines won't size the window
	148	// the second time you call the file dialog, because it thinks it is
	149	// already at the requested size.. (when centering)
	150	gs_rectDialog.x =
	151	gs_rectDialog.y = 0;
	152
	153	}
	154	void wxFileDialog::GetPaths(wxArrayString& paths) const
	155	{
	156	paths.Empty();
	157
	158	wxString dir(m_dir);
	159	if ( m_dir.Last() != _T('\\') )
	160	dir += _T('\\');
	161
	162	size_t count = m_fileNames.GetCount();
	163	for ( size_t n = 0; n < count; n++ )
	164	{
	165	if (wxFileName(m_fileNames[n]).IsAbsolute())
	166	paths.Add(m_fileNames[n]);
	167	else
	168	paths.Add(dir + m_fileNames[n]);
	169	}
	170	}
	171
	172	void wxFileDialog::GetFilenames(wxArrayString& files) const
	173	{
	174	files = m_fileNames;
	175	}
	176
	177	void wxFileDialog::SetPath(const wxString& path)
	178	{
	179	wxString ext;
	180	wxSplitPath(path, &m_dir, &m_fileName, &ext);
	181	if ( !ext.empty() )
	182	m_fileName << _T('.') << ext;
	183	}
	184
	185	void wxFileDialog::DoGetPosition( int x, int y ) const
	186	{
	187	*x = gs_rectDialog.x;
	188	*y = gs_rectDialog.y;
	189	}
	190
	191
	192	void wxFileDialog::DoGetSize(int width, int height) const
	193	{
	194	*width = gs_rectDialog.width;
	195	*height = gs_rectDialog.height;
	196	}
	197
	198	void wxFileDialog::DoMoveWindow(int x, int y, int WXUNUSED(width), int WXUNUSED(height))
	199	{
	200	m_bMovedWindow = true;
	201
	202	gs_rectDialog.x = x;
	203	gs_rectDialog.y = y;
	204
	205	/*
	206	The width and height can not be set by the programmer
	207	its just not possible. But the program can get the
	208	size of the Dlg after it has been shown, in case they need
	209	that data.
	210	*/
	211	}
	212
	213	int wxFileDialog::ShowModal()
	214	{
	215	HWND hWnd = 0;
	216	if (m_parent) hWnd = (HWND) m_parent->GetHWND();
	217	if (!hWnd && wxTheApp->GetTopWindow())
	218	hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
	219
	220	static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
	221	wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
	222
	223	*fileNameBuffer = wxT('\0');
	224	*titleBuffer = wxT('\0');
	225
	226	#if WXWIN_COMPATIBILITY_2_4
	227	long msw_flags = 0;
	228	if ( (m_dialogStyle & wxHIDE_READONLY) \|\| (m_dialogStyle & wxSAVE) )
	229	msw_flags \|= OFN_HIDEREADONLY;
	230	#else
	231	long msw_flags = OFN_HIDEREADONLY;
	232	#endif
	233
	234	if ( m_dialogStyle & wxFILE_MUST_EXIST )
	235	msw_flags \|= OFN_PATHMUSTEXIST \| OFN_FILEMUSTEXIST;
	236	/*
	237	If the window has been moved the programmer is probably
	238	trying to center or position it. Thus we set the callback
	239	or hook function so that we can actually adjust the position.
	240	Without moving or centering the dlg, it will just stay
	241	in the upper left of the frame, it does not center
	242	automatically.. One additional note, when the hook is
	243	enabled, the PLACES BAR in the dlg (shown on later versions
	244	of windows (2000 and XP) will automatically be turned off
	245	according to the MSDN docs. This is normal. If the
	246	programmer needs the PLACES BAR (left side of dlg) they
	247	just shouldn't move or center the dlg.
	248	*/
	249	if (m_bMovedWindow) // we need these flags.
	250	{
	251	msw_flags \|= OFN_EXPLORER\|OFN_ENABLEHOOK;
	252	#ifndef __WXWINCE__
	253	msw_flags \|= OFN_ENABLESIZING;
	254	#endif
	255	}
	256
	257	if (m_dialogStyle & wxMULTIPLE )
	258	{
	259	// OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
	260	msw_flags \|= OFN_EXPLORER \| OFN_ALLOWMULTISELECT;
	261	}
	262
	263	// if wxCHANGE_DIR flag is not given we shouldn't change the CWD which the
	264	// standard dialog does by default
	265	if ( !(m_dialogStyle & wxCHANGE_DIR) )
	266	{
	267	msw_flags \|= OFN_NOCHANGEDIR;
	268	}
	269
	270	if ( m_dialogStyle & wxOVERWRITE_PROMPT )
	271	{
	272	msw_flags \|= OFN_OVERWRITEPROMPT;
	273	}
	274
	275	OPENFILENAME of;
	276	wxZeroMemory(of);
	277
	278	// the OPENFILENAME struct has been extended in newer version of
	279	// comcdlg32.dll, but as we don't use the extended fields anyhow, set
	280	// the struct size to the old value - otherwise, the programs compiled
	281	// with new headers will not work with the old libraries
	282	#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
	283	of.lStructSize = sizeof(OPENFILENAME) -
	284	(sizeof(void ) + 2sizeof(DWORD));
	285	#else // old headers
	286	of.lStructSize = sizeof(OPENFILENAME);
	287	#endif
	288
	289	of.hwndOwner = hWnd;
	290	of.lpstrTitle = WXSTRINGCAST m_message;
	291	of.lpstrFileTitle = titleBuffer;
	292	of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT; // Windows 3.0 and 3.1
	293
	294	// Convert forward slashes to backslashes (file selector doesn't like
	295	// forward slashes) and also squeeze multiple consecutive slashes into one
	296	// as it doesn't like two backslashes in a row neither
	297
	298	wxString dir;
	299	size_t i, len = m_dir.length();
	300	dir.reserve(len);
	301	for ( i = 0; i < len; i++ )
	302	{
	303	wxChar ch = m_dir[i];
	304	switch ( ch )
	305	{
	306	case _T('/'):
	307	// convert to backslash
	308	ch = _T('\\');
	309
	310	// fall through
	311
	312	case _T('\\'):
	313	while ( i < len - 1 )
	314	{
	315	wxChar chNext = m_dir[i + 1];
	316	if ( chNext != _T('\\') && chNext != _T('/') )
	317	break;
	318
	319	// ignore the next one, unless it is at the start of a UNC path
	320	if (i > 0)
	321	i++;
	322	else
	323	break;
	324	}
	325	// fall through
	326
	327	default:
	328	// normal char
	329	dir += ch;
	330	}
	331	}
	332
	333	of.lpstrInitialDir = dir.c_str();
	334
	335	of.Flags = msw_flags;
	336	of.lpfnHook = wxFileDialogHookFunction;
	337
	338	wxArrayString wildDescriptions, wildFilters;
	339
	340	size_t items = wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters);
	341
	342	wxASSERT_MSG( items > 0 , _T("empty wildcard list") );
	343
	344	wxString filterBuffer;
	345
	346	for (i = 0; i < items ; i++)
	347	{
	348	filterBuffer += wildDescriptions[i];
	349	filterBuffer += wxT("\|");
	350	filterBuffer += wildFilters[i];
	351	filterBuffer += wxT("\|");
	352	}
	353
	354	// Replace \| with \0
	355	for (i = 0; i < filterBuffer.Len(); i++ ) {
	356	if ( filterBuffer.GetChar(i) == wxT('\|') ) {
	357	filterBuffer[i] = wxT('\0');
	358	}
	359	}
	360
	361	of.lpstrFilter = (LPTSTR)filterBuffer.c_str();
	362	of.nFilterIndex = m_filterIndex + 1;
	363
	364	//=== Setting defaultFileName >>=========================================
	365
	366	wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
	367	fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
	368
	369	of.lpstrFile = fileNameBuffer; // holds returned filename
	370	of.nMaxFile = wxMAXPATH;
	371
	372	// we must set the default extension because otherwise Windows would check
	373	// for the existing of a wrong file with wxOVERWRITE_PROMPT (i.e. if the
	374	// user types "foo" and the default extension is ".bar" we should force it
	375	// to check for "foo.bar" existence and not "foo")
	376	wxString defextBuffer; // we need it to be alive until GetSaveFileName()!
	377	if (m_dialogStyle & wxSAVE)
	378	{
	379	const wxChar* extension = filterBuffer;
	380	int maxFilter = (int)(of.nFilterIndex*2L) - 1;
	381
	382	for( int i = 0; i < maxFilter; i++ ) // get extension
	383	extension = extension + wxStrlen( extension ) + 1;
	384
	385	// use dummy name a to avoid assert in AppendExtension
	386	defextBuffer = AppendExtension(wxT("a"), extension);
	387	if (defextBuffer.StartsWith(wxT("a.")))
	388	{
	389	defextBuffer.Mid(2);
	390	of.lpstrDefExt = defextBuffer.c_str();
	391	}
	392	}
	393
	394	//== Execute FileDialog >>=================================================
	395
	396	bool success = (m_dialogStyle & wxSAVE ? GetSaveFileName(&of)
	397	: GetOpenFileName(&of)) != 0;
	398
	399	DWORD errCode = CommDlgExtendedError();
	400
	401	#ifdef __WIN32__
	402	if (!success && (errCode == CDERR_STRUCTSIZE))
	403	{
	404	// The struct size has changed so try a smaller or bigger size
	405
	406	int oldStructSize = of.lStructSize;
	407	of.lStructSize = oldStructSize - (sizeof(void ) + 2sizeof(DWORD));
	408	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	409	: (GetOpenFileName(&of) != 0);
	410	errCode = CommDlgExtendedError();
	411
	412	if (!success && (errCode == CDERR_STRUCTSIZE))
	413	{
	414	of.lStructSize = oldStructSize + (sizeof(void ) + 2sizeof(DWORD));
	415	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	416	: (GetOpenFileName(&of) != 0);
	417	}
	418	}
	419	#endif // __WIN32__
	420
	421	if ( success )
	422	{
	423	m_fileNames.Empty();
	424
	425	if ( ( m_dialogStyle & wxMULTIPLE ) &&
	426	#if defined(OFN_EXPLORER)
	427	( fileNameBuffer[of.nFileOffset-1] == wxT('\0') )
	428	#else
	429	( fileNameBuffer[of.nFileOffset-1] == wxT(' ') )
	430	#endif // OFN_EXPLORER
	431	)
	432	{
	433	#if defined(OFN_EXPLORER)
	434	m_dir = fileNameBuffer;
	435	i = of.nFileOffset;
	436	m_fileName = &fileNameBuffer[i];
	437	m_fileNames.Add(m_fileName);
	438	i += m_fileName.Len() + 1;
	439
	440	while (fileNameBuffer[i] != wxT('\0'))
	441	{
	442	m_fileNames.Add(&fileNameBuffer[i]);
	443	i += wxStrlen(&fileNameBuffer[i]) + 1;
	444	}
	445	#else
	446	wxStringTokenizer toke(fileNameBuffer, _T(" \t\r\n"));
	447	m_dir = toke.GetNextToken();
	448	m_fileName = toke.GetNextToken();
	449	m_fileNames.Add(m_fileName);
	450
	451	while (toke.HasMoreTokens())
	452	m_fileNames.Add(toke.GetNextToken());
	453	#endif // OFN_EXPLORER
	454
	455	wxString dir(m_dir);
	456	if ( m_dir.Last() != _T('\\') )
	457	dir += _T('\\');
	458
	459	m_path = dir + m_fileName;
	460	m_filterIndex = (int)of.nFilterIndex - 1;
	461	}
	462	else
	463	{
	464	//=== Adding the correct extension >>=================================
	465
	466	m_filterIndex = (int)of.nFilterIndex - 1;
	467
	468	if ( !of.nFileExtension \|\|
	469	(of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) )
	470	{
	471	// User has typed a filename without an extension:
	472	const wxChar* extension = filterBuffer;
	473	int maxFilter = (int)(of.nFilterIndex*2L) - 1;
	474
	475	for( int i = 0; i < maxFilter; i++ ) // get extension
	476	extension = extension + wxStrlen( extension ) + 1;
	477
	478	m_fileName = AppendExtension(fileNameBuffer, extension);
	479	wxStrncpy(fileNameBuffer, m_fileName.c_str(), wxMin(m_fileName.Len(), wxMAXPATH-1));
	480	fileNameBuffer[wxMin(m_fileName.Len(), wxMAXPATH-1)] = wxT('\0');
	481	}
	482
	483	m_path = fileNameBuffer;
	484	m_fileName = wxFileNameFromPath(fileNameBuffer);
	485	m_fileNames.Add(m_fileName);
	486	m_dir = wxPathOnly(fileNameBuffer);
	487	}
	488	}
	489	else
	490	{
	491	// common dialog failed - why?
	492	#ifdef __WXDEBUG__
	493	DWORD dwErr = CommDlgExtendedError();
	494	if ( dwErr != 0 )
	495	{
	496	// this msg is only for developers
	497	wxLogError(wxT("Common dialog failed with error code %0lx."),
	498	dwErr);
	499	}
	500	//else: it was just cancelled
	501	#endif
	502	}
	503
	504	return success ? wxID_OK : wxID_CANCEL;
	505
	506	}
	507
	508	#endif // wxUSE_FILEDLG && !(__SMARTPHONE__ && __WXWINCE__)
	509